head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
The 1981 arcade classic of climbing girders and dodging barrels.

Execution · Practiced Mastery
Pattern memorisation and precise platforming with a solvable boss-order route.
Donkey Kong leans Execution (Practiced Mastery); Mega Man 5 leans Execution (Practiced Mastery).
Donkey Kong leans a little harder on execution, though the gap is small.
Donkey Kong
Frame-tight jumps over barrels under arcade pressure
Mega Man 5
Precise jumps and buster timing through gauntlet stages
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong
Fixed arcade patterns, nothing adapts
Mega Man 5
Robot Masters cycle fixed attack patterns
Donkey Kong leans a little harder on variance, though the gap is small.
Donkey Kong
Barrel bounces add slight unpredictability
Mega Man 5
Every stage and boss is identical each attempt
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong
Stage patterns and score routes fully learnable
Mega Man 5
Weapon-order routing and pattern memorisation solve the game
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.